favor orphan drugs on "mad money" because the government gives them all sorts of extra goodies, like tax incentives, years of marketing exclusive ift, but best of all, when you have awe drug that treats an ultra rare often lethal condition with no known cure like alexion does, there's basically no limit on how much you can charge for the thing. after all, what price can you put on a human life? alexion is working hard to answer that question because solaris may be the single most expensive drug on earth. a year of treatment can cost more than a half a million dollars. that's why even though not very many people have the blood disorder, solaris is already a billion dollar drug, and at the end of last year it got fda approval for an extremely rare kidney disease that can be deadly. ever since solaris got fda approval back in 7dz, it has been beating the street's expectation. how big could the drug be? for pnh solaris could be $2 billion in sales around the world. this kidney disease could mean an additional $900 million in sales, and plus a treatment for a number of other diseases, and the